Java で「エラー: \'.class\' Expected」コンパイル エラーが発生するのはなぜですか?

double d = 1.9;
int i = (int) d; // Correct: cast 1.9 to integer

int j = someFunction(a); // Correct ... assuming 'a' is appropriate

someMethod(array[]);

int i = someMethod(int j); // Should be: int i = someMethod(j);

int i = int(2.0); // Should be: int i = (int) 2.0;

int[]; letterCount = new int[26];

if (someArray[] > 80) { // Should be: if (someArray[someIndex] > 80)

if ((withdraw % 5 == 0) && (acnt_balc >= withdraw + 0.50))
    double cur = acnt_balc - (withdraw + 0.50);
    System.out.println(cur);
else
    System.out.println(acnt_balc);